..At the bottom the light intensity is lower (attenuation of the water column and self shading of the cells) and the cells recover. After recovery the cells swim upward again until the negative gravitaxis is reversed again...

Chronic toxicity of a laundry detergent to the freshwater flagellate Euglena gracilis

..Additional investigations on the pigmentation, revealed that the cells showed a complete loss of a carotenoid shoulder in the spectrum, which reappeared when the cells were brought back to standard medium...

ECOTOX - biomonitoring based on real time movement analysis of unicellular organisms

..This indicates that CaM.2 is an element in the signal transduction chain of gravitaxis in E. gracilis. The results are discussed with regard to the current working model of gravitaxis in E. gracilis...

R3DE: Radiation Risk Radiometer-Dosimeter on the International Space Station--optical radiation data recorded during 18 months of EXPOSE-E exposure to open space

..viridis, respectively, followed by T. suecica with an EC(50) value of 40 mg/L. The Prorocentrum species were found to be the most sensitive with an EC(50) value of 13.5 mg/L for P. minimum Lissabon and 7.5 mg/L for P. minimum Kattegat...

..The data presented in this review are extracted from various studies published in national and international journals. Also reports released by the government and non-governmental organizations are included...